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Polyacrylamide is utilized in water treatment primarily as a flocculant—a substance that encourages the clumping of particles, which can then be removed from water. While this aids in purifying water and removing sediments, the challenge lies in ensuring that the acrylamide residuals do not pose a risk to consumer health.
acrylamide water treatment

On the other hand, excipients are the non-active components of a drug formulation that serve as vehicles for the API. They may enhance the stability of the medication, aid in the manufacturing process, improve taste, or assist in the drug's absorption in the body. Common excipients include fillers, binders, preservatives, and flavoring agents. For instance, lactose is often used as a filler in tablets, while magnesium stearate serves as a lubricant during production. Although they do not provide therapeutic effects, excipients can influence the bioavailability and efficacy of the active ingredients, making their selection critical in drug formulation.
pharmaceutical ingredients
